remove unused code

oml/item/api.py

@@ -9,7 +9,6 @@ from sqlalchemy.sql.expression import text
 from sqlalchemy import func
 
 from oxtornado import actions
-from utils import cleanup_id
 from websocket import trigger_event
 import meta
 from . import models

oml/utils.py

@@ -36,13 +36,6 @@ logger = logging.getLogger(__name__)
 
 ENCODING='base64'
 
-def cleanup_id(key, value):
-    if key == 'isbn':
-        value = normalize_isbn(value)
-    if key in ('lccn', 'olid', 'oclc'):
-        value = ''.join([v for v in value if v!='-'])
-    return value
-
 def valid_olid(id):
     return id.startswith('OL') and id.endswith('M')